🔧 Update sponsors: Add TestMu again (#15830)

docs/en/data/sponsors.yml

@@ -53,3 +53,6 @@ bronze:
   # - url: https://testdriven.io/courses/tdd-fastapi/
   #   title: Learn to build high-quality web apps with best practices
   #   img: /img/sponsors/testdriven.svg
+  - url: https://www.testmu.ai/?utm_source=fastapi&utm_medium=partner&utm_campaign=sponsor&utm_term=opensource&utm_content=webpage
+    title: TestMu AI. The Native AI-Agentic Cloud Platform to Supercharge Quality Engineering.
+    img: /img/sponsors/testmu.png

docs/en/docs/fastapi-people.md

@@ -249,6 +249,16 @@ They are supporting my work with **FastAPI** (and others), mainly through [GitHu
 <a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
 {% endfor %}
 {% endif %}
+
+{% if sponsors.bronze %}
+
+### Bronze Sponsors
+
+{% for sponsor in sponsors.bronze -%}
+<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
+{% endfor %}
+{% endif %}
+
 {% endif %}
 
 ### Individual Sponsors